title: A compact light source at 461 nm using a periodically poled LiNbO3 waveguide for strontium magneto-optical trapping.
abstract: We have developed a compact light source at 461 nm using a single-pass periodically poled LiNbO3 waveguide for second-harmonic (SH) generation. The obtained optical power at 461 nm is 76 mW when the power of the 922-nm fundamental light coupled into the waveguide is 248 mW. Although a narrowing of the phase-matching temperature acceptance bandwidth is observed at a high SH power, stable overnight operation is realized by carefully controlling the device temperature within an uncertainty of 0.01 °C.
authors.affiliation: National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), Central 3, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Akamatsu
authors.forename: Masami
authors.initials: M
authors.lastname: Yasuda
authors.forename: Takuya
authors.initials: T
authors.lastname: Kohno
authors.forename: Atsushi
authors.initials: A
authors.lastname: Onae
authors.forename: Feng-Lei
authors.initials: FL
authors.lastname: Hong
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008029:Lighting / Q000295:instrumentation*; D008280:Magnetics / Q000295:instrumentation*; D008904:Miniaturization; D009556:Niobium / Q000737:chemistry*; D052898:Optical Tweezers; D010087:Oxides / Q000737:chemistry*; D013324:Strontium / Q000737:chemistry*
chemical_list: D010087:Oxides; D009556:Niobium; C091692:lithium niobate; D013324:Strontium